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A 7.0 magnitude earthquake in Humboldt County caused seismic seiches in Devils Hole, a Mojave Desert cave home to the endangered pupfish. While short-term impacts disrupted their spawning habitat, experts suggest the event may have beneficial long-term effects by improving water oxygen levels, potentially boosting pupfish spawning activity. #seismic #retrofit #earthquake #thebigone https://lnkd.in/g8NhpYJF

This Sunday is the 325th anniversary of the last Cascadia Subduction Zone earthquake. Scientists know it is only a matter of time before this fault generates another serious earthquake and tsunami in the Pacific Northwest. That's why scientists from two groups at the University of Oregon are leading efforts to understand seismic hazards and reduce the impacts of future earthquakes. The Oregon Hazards Lab is part of the Pacific Northwest Seismic Network, which operates hundreds of seismic monitoring stations across Oregon and Washington. When seismic stations detect an earthquake, the #ShakeAlert Earthquake Early Warning System can alert people so they have time to protect themselves before dangerous shaking arrives! The Cascadia Region Earthquake Science Center studies the Cascadia Subduction Zone, including mapping the extent of historic tsunamis and identifying faults across the region. This helps government agencies create actionable tools for the public, like improved tsunami inundation maps. Learn more about our work at https://lnkd.in/g7d9mVaH.

A powerful 6.8 magnitude earthquake hit the Philippines on 2nd August and aftershocks were experienced on 5th of August. It caused significant damage in Surigao del Sur. As per USGS, the cause was Thrust-oblique faulting within the Philippine Trench. Philippine Trench is a deep underwater valley formed where 2 tectonic plates collided by oblique falling i.e. that the rocks moved both horizontally and vertically and one block of rock was pushed over another (thrust faulting) thus releasing the energy and the subsequent earthquake. This event occurred in a complex tectonic region where the Philippine Sea and Sunda plates converge, thus it provides an opportunity to examine plate interactions and subduction zone dynamics. It occurred at a relatively shallow depth of 25.8 kilometers and caused significant damage to the region. Fortunately, there were no reported fatalities. Such events provide valuable data for scientific studies of upper crustal structures and fault mechanics, which can contribute to future disaster preparedness. The earthquake's aftershock (4.4-4.9 Mw) sequence could prove to be useful in studying stress redistribution and fault behavior following a major seismic event. Additionally, the absence of a tsunami despite the offshore location is scientifically interesting, contributing to knowledge about tsunami generation in the region. This event further emphasizes the need for ongoing seismic hazard assessments in the Philippines, helping in the development of effective earthquake preparedness and mitigation strategies. Our thoughts are with those affected by this event. #PhilippinesEarthquake #earthquake #naturaldisaster #humanitariancrisis #disasterrelief #safetyfirst #philippines #SurigaoDelSur #earthquakescience #seismicactivity #disasterresponse #crisismanagement

Here’s footage from today’s earthquake, a reminder of how powerful and unpredictable natural disasters can be. As we witness the impact, it's crucial to remember the importance of preparedness and safety. Natural disasters are inevitable, but our preparedness can make a significant difference. "Earthquakes are unpredictable natural disasters, and while we cannot control their occurrence, we can take steps to minimize their impact. Being prepared is key to ensuring safety and reducing the risk of injury or damage. Understanding their causes and taking preventive safety measures can save lives and reduce destruction. Causes of Earthquakes: Tectonic Plate Movement: The shifting of Earth's tectonic plates leads to stress accumulation and sudden release, causing earthquakes. Volcanic Activity: Earthquakes can occur as a result of volcanic eruptions, where magma movement causes pressure on surrounding rock formations. Human Activities: Mining, dam construction, and deep-well drilling can trigger induced seismic events. Safety Measures During an Earthquake: Drop, Cover, and Hold On: Drop to the ground, take cover under a sturdy piece of furniture, and hold on until the shaking stops. Secure Heavy Items: Anchor heavy furniture and appliances to walls to prevent them from tipping over during tremors. Create a Safe Space: Identify and practice using safe spaces in your home or office, such as under desks or against interior walls. Avoid Windows: Stay away from windows, glass, and exterior walls to minimize the risk of injury from shattered glass or debris. Have an Emergency Kit Ready: Prepare a kit with essential supplies like water, non-perishable food, first aid supplies, and a flashlight. By understanding the causes and following safety measures, we can be better equipped to protect ourselves and others during an earthquake." #EarthquakePreparedness, #DisasterManagement, #NaturalDisasters, #EarthquakeSafety, #EmergencyResponse, #BePrepared, #SafetyFirst, #RiskManagement, #DisasterRelief, #Resilience, #BuildingSafety, #StaySafe, #EmergencyPlanning, #TectonicActivity, #ChinaEarthquake, #ChinaDisasterResponse, #ChinaEarthquakeSafety, #ChinaReliefEfforts, #ChinaEmergencyResponse, #EarthquakeChina, #SeismicActivityChina, #ChinaPreparedness, #ChinaResilience

Important news! A new interactive blog recapping the M6.4 earthquake that struck near #Ridgecrest on July 4, 2019, is now live! Read about action taken by #geologists, damage from the quake, how #earthquakes are researched, and why this information is important. https://lnkd.in/gzkgzEQ8 #californiageologicalsurvey California Natural Resources Agency California Governor's Office of Emergency Services U.S. Geological Survey (USGS) #earthquakepreparedness #EarthquakeWarning

Mexico has long been one of Earth’s prominent seismic zones, where powerful quakes have shaken up the landscape – strangely re-occurring on September 19th. Looking at some of Mexico’s most significant earthquakes: 1985 Mexico City Earthquake (Magnitude 8.1) - This infamous quake levelled various parts of Mexico City. With its epicenter off the coast of Michoacán, the earthquake caused buildings across Mexico City to crumble. Tragically, over 10,000 lives were lost, but the nation rallied in one of the most impressive volunteer responses the world had ever seen. The event changed Mexico’s approach to emergency preparedness forever, leading to stricter building codes. 2017 Puebla Earthquake (Magnitude 7.1) - This earthquake hit near Puebla and caused devastation across central Mexico. Mexico City again experienced severe shaking, and the quake claimed over 350 lives. 2022 Michoacán Earthquake (Magnitude 7.6) - This earthquake struck near the Pacific coast in Michoacán, causing widespread shaking and damage in nearby towns. Though this earthquake led to fewer casualties thanks to improved preparedness, it was a reminder of Mexico's seismic reality and the uncanny way September 19th has marked these events. Fortunately, SeismicAI is deploying a seismic network across Mexico, providing earthquake early warnings to fortify the country’s resilience and make it safer!! #EarthquakePreparedness #SeismicAI #MexicoSafety #EarlyWarningSystem #BuildingResilience #StayPrepared #EarthquakeSafety #SeismicNetwork #MexicoStrong #DisasterPreparedness #SafetyInnovation

Two sets of earthquake swarms have hit California. What's going on along the Mexico border? Rong-Gong Lin II Updated Wed, May 22, 2024 at 12:45 AM GMT+5 https://lnkd.in/dGzriDBS? A map shows earthquakes above magnitude 2.5 that struck in the last week in Southern California. Quakes marked in orange occurred over a 24-hour period ending at 9 a.m. Monday, while those in yellow occurred previously. (U.S. Geological Survey) Another earthquake swarm has been rumbling along the California-Mexico border. More than two dozen quakes greater than magnitude 2.5 have occurred since just after midnight Saturday, with epicenters about 175 miles southeast of downtown Los Angeles and 100 miles northeast of San Diego, according to the U.S. Geological Survey. They have occurred largely along farmland between the towns of Brawley and Imperial in Imperial County. The largest quake was a magnitude 3.9 that struck at 4:05 p.m. Saturday, bringing light shaking to the Imperial Valley as well as south of the border and rattling Mexicali.

An earthquake is defined as a sudden violent shaking of the ground, typically causing great destruction due to movements within the earth's crust or volcanic action. #Earthquakes rank among the deadliest disasters on Earth. The 2023 earthquake near the Turkey-Syria border is a stark example. The initial magnitude-7.8 quake was centered south of the Turkish city Kahramanmaraş, followed by a magnitude-7.7 aftershock. The impact was catastrophic: more than 50,700 people were killed, and 107,000 were injured. Widespread damage covered an area of about 350,000 km² (approximately the size of Germany), affecting an estimated 14 million people. The total damage is estimated to be over US$163.6 billion. 🌍 🌎 🔍 Take a look at the small multiples I made using ArcGIS Pro guided by #CARTOMOOC: This layout shows the locations of historical earthquakes in ranked order of magnitude range. Observe and think about the following: - What is the relationship between the number of earthquakes and their magnitude? Is it directly proportional or inversely proportional? - Where do you think are the most notable areas of seismic activity? - In which countries have earthquakes of more than nine magnitude occurred? #ESRI #ArcGISPro #SmallMultiples #Cartography

New research suggests that a distinct signal before an earthquake may occur in a section of the San Andreas fault known as Parkfield, raising the possibility of an imminent quake. This fault segment, which shakes about every 22 years, could provide valuable insights into predicting earthquakes, potentially saving lives. #SanAndreasFault #EarthquakePrediction #ParkfieldFault #earthquakes https://lnkd.in/g8uWYfYT